the main concern with respect to discharge of patients from hospital after 131-i therapy is contamination of their surroundings and exposure of people who are in close contact with them. in this study, we evaluated absorbed dose received by homemates of these patients within one week of discharge from hospital. this study was based on 100 patients (23 patients with thyroid cancer together with ...

Background: Radiation protection in the dental examination is often overlooked because doses delivered are negligible. However, volume of radiological examinations will constitute almost 15% all carried out medical field. Aim: This study aims to evaluate and compare surface equivalent dose on various target organs from radiology devices RINN phantom, effect numerous scanning protocols said usin...

case presentation a 28-year old chinese female was treated with carbimazole (cmz) for graves’ disease with hyperthyroidism. two weeks later, she developed myalgia and proximal muscle weakness. investigations showed evidence of myopathy. cmz was stopped and rapid improvement of clinical condition and biochemical parameters ensued. conclusions rapid decrement of thyroid hormone level is recognize...

BACKGROUND Thyroid dysfunction after exposure to low or moderate doses of radioactive iodine-131 (131I) at a young age is a public health concern. However, quantitative data are sparse concerning 131I-related risk of these common diseases. OBJECTIVE Our goal was to assess the prevalence of thyroid dysfunction in association with 131I exposure during childhood (≤ 18 years) due to fallout from ...

introduction: high-dose radioactive iodine therapy in differentiated thyroid cancer (dtc) may adversely affect the salivary gland function. this study is aimed to evaluate the effect of radioactive iodine (rai) with dose of 100 mci in dtc patients compared to lower doses of less than 30 mci in hyperthyroid cases. methods: fifty four patients (13 men and 41 women) age: 42.3±14.3 (21-71) years w...

Introduction: Stereotactic Gamma Knife radiosurgery has been widely used for treating brain tumors. The scattered radiation outside of treatment field (peripheral dose) can induce the secondary cancer to specific organ. This paper investigated the absorbed dose to eyes, thyroid, heart, lung, breast and colon using a Monte Carlo technique for Mird phantom. We also study the ef...

BACKGROUND Radiation to the neck has long been associated with an elevated risk of hypothyroidism development. The goal of the present work is to define dosimetric predictors of hypothyroidism in oropharyngeal cancer (OPC) patients treated with intensity-modulated radiation therapy. METHODS Data for 123 patients, with a median follow up of 4.6 years, were retrospectively analyzed. Patients wi...

A dose-response study was performed in adult rats to select an optimal stable potassium iodide (KI) dose which could be implemented in repeated prophylaxis, in case of prolonged exposure to radioactive iodine. Increasing doses of KI were given orally to rats 1 hour before internal exposure simulated by I-125 injection. I-125 incorporation in the thyroid was measured by γ-spectrometry, and KI pr...